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40MB hard disk from the expansion area required DOS3.3 set about DOS


Distribution of dangerous. Do. . 2, activation can only select c; 1 area, which can not be enabled if activation of c drive. * 3. With the parameters required to format c drive / s, but consciously IBMBIO. COM and IBMDOS. COM delete FAT file recovery to this end. (3) to restore a good file directory entry and FAT write B disk: ~ W1000: 0I】 B ~ Q 'point, on a floppy disk file EDLIN. COM return to work all done. The document can also resume normal operation. Recovery process in the above documents, except to note that the file must tide has not been covered by other documents, or can not be restored. Reference: The Great Wall 0520 a ship tNCa chu CHDOS-~ Ol-axis port ● A} B vend Xuan Shi Chao Zhang days to improve the efficiency of computer use, improve the way into the jurisdiction of the traditional keyboard,[link widoczny dla zalogowanych], the United States N. J. Woodland in 1949 proposed a new data language - bar code, people can cut the bar code identification system to identify various types of data. Now, with the industry, increasing the degree of automation, there has been a wide variety of bar codes, while the application of bar code identification system is also more extensive. First, the capsule of the kinds of codes can match the bar code is a set of line and space ratio of the composition of the required data in the code, that is, from some of the data stripes or components (visual maps of varying thickness) consisting of code. Many bar code identification of each information unit with the start and end, the bar code can be remotely through a dedicated software to generate a code,[link widoczny dla zalogowanych], the user code according to certain principles as long as, you can easily in an ordinary computer printer (preferably bar code printer uses heat conduction ) on the need to print their own barcode labels. Since 1949, the first bar after the advent of the loop l, to meet the different needs of many decades between the emergence of the bar code, such as Nixdorf get 2 yards 5 yards, uPc code, alternately 5 to take 2 yards, Piessey code, Ames code , Code39 code, COda code, etc., but only four widely accepted that Code39 code, UPC code, Coda code and get 2 yards turn 5. 1.39 yards (Code39) COde39 company is 1'9 Intermec bar code was developed, which consists of nine lines, of which there are 3. Article wide profile, so it is called 39 yards. It is 39 yards away from the line of bar code, it can handle and process digital information, like the letter the letter cubs, which provides a wealth of bar code character set, which includes 0 --. 9, A a z,, ※ ,$,/,+, data characters and 43 first-class interval (ie space), to facilitate two-way scan also set a unique start / stop character. As each character from the five lines and four empty Wen total of nine elements, three elements are wide bar (binary (such as the use PCTOOLS), to prevent non-DOs bootstrap disk drive or unauthorized use of hard workers. If A drive is damaged,[link widoczny dla zalogowanych], it can be the signal jack for connection B drive,[link widoczny dla zalogowanych], A drive to change the latter, for the start with 4. reformat the hard disk should be parameters / v,[link widoczny dla zalogowanych], label can be built only mistakenly formatted fat (DOS3.2 that is required Type the letter and the label has). 5. formatted logical drive do not take parameters / s, because they can not be activated, IBMB10.COM and IBMDOS.C-OM basically useless, but should copy COMMAMD.COM, to adapt to the rejection a lot of memory after the event back to the DOS prompt will be covered when part of c0MMAND.COM and into memory needs. .6. if necessary, to make C drive to pick ~ DOs2.0/2.1 sort of access, its capacity can be set within the 1OMB, installation of Chinese and Western culture and other needs of the operating system files. DOS3.3 applications running under the main package should be loaded XINLANGCHAO D large-capacity disk and other (DOS3.3 the following versions can not access the expansion area). 7.FDISK.COM screen with the hard drive status information whether the logical drive is mainly vary, such as the new \three, that is displayed directly select the logical drive name (din addition to the menu like), as the main menu as shown in the availability of the second hard disk. But IBMPC-DOS3.3 manual has not been listed., 8. deletion order the contrary, first delete make logical drive name, then delete the extension (option 2, y), the last as the basic area (select l, y). 9.40MB disk can also be used under this Act, IBMDOS3.30 manual down a child in 10MB (column face number 305), 20MB hard disk a good practice, C dial is set to 5MB up and down, I for D drive and so on.
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